28356968870 has 32 divisors (see below), whose sum is σ = 53389082880. Its totient is φ = 10823692000.

The previous prime is 28356968863. The next prime is 28356968879. The reversal of 28356968870 is 7886965382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28356968879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50756 + ... + 243495.

It is an arithmetic number, because the mean of its divisors is an integer number (1668408840).

Almost surely, 2^28356968870 is an apocalyptic number.

28356968870 is a deficient number, since it is larger than the sum of its proper divisors (25032114010).

28356968870 is a wasteful number, since it uses less digits than its factorization.

28356968870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294700.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 28356968870 in words is "twenty-eight billion, three hundred fifty-six million, nine hundred sixty-eight thousand, eight hundred seventy".